John clifford



(fie Model.)

} v .J. CLIFF-0RD. AUTOMATIC S IPHON FLUSHING TANK FOR WATER GLOSETS, &c.

Patented Mar. 23, 1897,

EZTGI c Fri/66659 H I WITNESSES- S U QQN. R R m 0 WWW a M W M v B -UNITED STATES PATENT OFFICE.

JOHN CLIFFORD, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE L. WVOLFF MANUFACTURING COMPANY, OF SAME PLACE.

AUTOMATIC SIPHON FLUSHlNG-TANK FOR WATER-CLOSETS, 84.0.

SPECIFICATION forming part of Letters Patent No. 579,315, dated March 23, 1897.

Application filed May 8, 1895. Serial No. 548,482. (No model.)

To all whom, it may concern:

Be it known that I, JOHN CLIFFORD, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Automatic Siphon Flushing-Tanks for Water-Closets, Urinals, &c., of which the follow ing is a specification.

My invention relates to automatic flushingtanks for water-closets, urinals, &c., and more particularly to automatic flushing-tanks having pivoted siphons communicating with the discharge-pipe and connected and operated by a movable cup-shaped float which is adapted to fill with water at intervals and depress the siphon.v

The object of my invention is to simplify the construction ofthe automatic pivoted siphon flushing-tank and provide it with means for emptying both the tank and the float at intervals to produce the necessary sudden flush of water, and also to provide at a more gradual discharge an afterwash-supply of water following each sudden flushing. The force of the water discharged at each sudden fiushin g, when sufficiently ample and strong to be effective for flushing purposes, is apt to carry the water entirely out of the water-closet bowl or other fixture and thus leave no adequate afterwash-supply therein, and this I remedy by providing my automatic siphon flushing-tank with a separate and more gradual siphon-discharge for the afterwash after each flushing.

My invention consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown and described, and specified in the claims.

In the accompanying drawings, forming a part of this specification, Figure 1 is a vertical sectional View of my automatic pivoted siphon flushing-tank. Fig. 2 is a plan view of the same, and Fig. 3 is an enlarged partial vertical section taken on the line 3 3 of Fig. 1.

In the drawings similar letters of reference indicate like parts throughout the several figures.

In said drawings, A represents a watercloset bowl or other fixture to which the outlet or discharge pipe leads from the tank.

B is the tank.

C is a cup-shaped movable float open at the top, so that it may fill with water when the water reaches a certain height in the tank B.

D is the pivoted siphon communicating at its hinged or pivoted end with the outlet or discharge coupling F and connected to the movable float and projecting through its bottom C. The discharge-coupling F is made in the form of an elbow and has one leg projecting through the bottom B of the tank B and connected with the discharge-pipe F. This leg of the elbow is secured rigidly to the bottom B of the tank by a suitable flange or collar f and threaded nut f. The upperhorizontal end of the elbow-coupling F is provided with screw-threads f and connected by a threaded flanged sleeve G with an elbowcoupling G, to which the siphon D is attached, thus forming a hinge or rotatable joint between the siphon-coupling G and the discharge-pipe coupling F. The elbow or coupling G fits at one end within the coupling F and is provided with a collar or shoulder g, which abuts against the end of the elbow'F, or, rather, against a gasket or packing-rin g g, interposed between. A similar gasket or packing-ring g is interposed between the collar g and the flange g of the sleeve G. The packing-rim gs are preferably made of felt saturated with oil or lubricant, so as to lubricate as well as pack the joint upon which the siphon D turns.

The cup-shaped or open-top float C is preferably secured to the siphon at the bend thereof by a strap 0, soldered to the float and to the siphon, and also by extending the end of the siphon-pipe through a hole 0, formed in the bottom of the float and soldering the bottom of the float to the pipe.

The siphon D is furnished with a supplemental branch D of small diameter extending into the float C for the purpose of emptying the float and restoring its buoyancy after the main siphon has emptied the tank B. This branch 13 should have about the same relation in size to the siphon D as the float has in capacity to that portion of the tank B below the upper edge of the float when in its lowest position, so that the float C and tank B will both be emptied at about the same time.

The tank B is furnished with a partition B forming a separate or afterwash chamber B and II is a slow-acting siphon, the long leg of which extends down through or into the discharge-pipe F or its coupling F, and the short leg h of which extends into the afterwashchamber B of the tank B, so as to gradually discharge this afterwash or supplemental supply of water after the tank B has been emptied by the main or flushing siphon D. To receive the siphon H, the coupling F is furnished with a threaded nipple h, and the joint is made tight by a packing-ring 7L2 and a flanged nut or threaded ring or sleeve h.

J is a stop supported in the bar J across the top of the tank to stop the float at the proper height.

In operation the water flows continuously into the tank B through the inlet-pipe K, which is furnished with a faucet 7t, and fills the tank B, including its chamber B the float C continuing to rise and lift the hinged siphon D. After thewater reaches a certain height in the tank B, the bar at the top not permitting the float to rise higher, the water will flow into the float and cause it to sink to the bottom of the tank B, thus starting the main siphon D into operation and emptying the tank B in a sudden flush. At the same time the supplemental branch D of the siphon D will also empty the float C, so that this operation can be repeated. \Vhen the siphon D begins to operate, the small or afterwash siphon H will also be set into operation by reason of the downward pull or suction of the water in the discharge-pipe, and this small siphon will continue to discharge the water from the afterwash-chamber B in a slow or gradual manner after the main or flushing siphon D has emptied the tank B and float 0. As this gradual delivery of water into the bowl A takes place after the flushing operation is completed, the afterwash-receptacle A of the bowl will be left properly filled with water.

I claim- 1. The combination with a flushing-tank and its discharge-pipe and a coupling connected to the discharge-pipe and extending into the tank, of a movable float adapted to fill with water, a pivoted or hinged and bent or two-legged siphon attached to the float and hinged at its discharge end or leg to said coupling, said siphon having its outer or shorter leg extending into the tank to the bottom thereof when the float is in its lowermost position to enable substantially all of the water to be siphoned out of the tank, and said siphon having also a branch extending into the float to the bottom thereof to empty the float, substantially as specified.

2. The combination with a fiushin g-t-ank, of

a movable float adapted to fill with water, a pivoted or hinged siphon attached to the float at its discharge end or leg to the outlet or discharge part of the tank, said siphon having its outer or short leg extending into the tank to the bottom thereof when the float is in its lowermost position to enable substantially all of the water to be siphoned out of the tank, and said siphon having also a branch extending into the float to the bottom thereof to empty the float, said tank being provided with a separate afterwash-chamber, and a second siphon having its free or open leg extending into said separate afterwash chamber to empty the same, substantially as specified.

3. The combination with a flushing-tank and its discharge-pipe and elbow-coupling connected with the discharge-pipe and extending into the tank, of a movable float adapted to fill with water, a pivoted or hinged and bent or two-legged siphon attached to the float and hinged at its discharge end or leg to said elbow-coupling, said siphon having its outer or shorter leg extending into the tank to the bottom thereof when the float is in its lowermost position to enable substantially all of the water to be siphoned out of the tank, and said siphon having also a branch extend-- ing into the float to the bottom thereof to empty the float, the free end of said siphon extending through the bottom of the float, and the branch being of smaller diameter than the siphon, substantially as specified.

4. The combination with a flushing-tank of a movable float, a hinged flushing-siphon connected to the float and moved thereby, said siphon communicating with the dischargeoutlet of the tank, the mouth or open end of said siphon extending to near the bottom of the tank when the float is in its lowermost position, said siphon having a branch extending into the float for emptying the float, a separate afterwash-chamber in the tank, and a second or afterwash siphon having its discharge-leg extending into the outlet of the tank so as to be setin operation by the discharge of water through said main or flushing siphon, the open leg of said second siphon extending into said afterwash-chamberto empty the same, substantially as specified.

5. The combination with a flushing-tank and its discharge-pipe and an elbow-coupling, of a movable float adapted to fill with water at or near its upper edge, a pivoted or hinged and bent or two-legged siphon attached to the float and hinged to and communicating with said discharge-pipe coupling, the open leg of said siphon havingits month end projectin g into the tank near the bottom thereof when the float is in its lowermost position and the bend or knee of the siphon extending above the float, said siphon having also a branch extending into the float to empty the same, substantially as specified.

6. The combination with tank 13, of a discharge-pipe coupling F, a siphon-coupling G fu rnished with a collar or shoulder g, packing- IIC : able float in the tank, a movable siphon connected to the float and communicating with the discharge pipe or outlet of the tank, and an elbow-coupling F furnished with a nipple h and a second siphon H extending into said coupling through said nipple, substantially I 5 as specified.

' JOHN CLIFFORD.

Witnesses:

H. M. MUNDAY, EDWARD S. EVARTS. 

